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Insect in Biological Dictionary

Ecdysone

... Ecdysone is a steroidal prohormone of the major insect molting hormone 20-hydroxyecdysone, which is secreted from the prothoracic glands. insect molting hormones are generally called ... Hormone (JH) JH affects gene expression. insect Hormones ... Under the influence of PTTH, they ...

Maternal effect

... mutations whose defects are ... The original evidence for gradients in insect development ... HOME :: CHAPTER 9 :: EVIDENCE FOR GRADIENTS IN insect DEVELOPMENT :: THE MATERNAL EFFECT GENES ... maternal effect . ...

Mandibles

... ... The mandible articulates with the two temporal bones at the ... insect mandibles are a pair of appendages near the insect’s mouth, and the most ... horror way ... Mandible (insect) The mandibles of a Bull ant insect mandibles are a pair of appendages near the insect's mouth, and the most ...

Larva

... form of many insects before metamorphosis ... Proserpinus proserpina, an insect larva ... Directed by Tim Cox. With Vincent Ventresca, Rachel Hunter, ... Online ... It's a bug's life for residents of Host, Mo., when mutant insect larvae develop a taste for human flesh. What begins as a parasitic ...

Insecta

... when used as directed on the INSECTA label. ... Now you can PREVENT insect pests with INSECTA ! ... An introduction to taxonomy and zoological ... Web. ... Insecta - Photograph gallery of many different species of insect arranged ... Imagine a world where bugs rule! Imagine designing your ...

Tracheae

... free online English dictionary and encyclopedia. ... upper respiratory tract - the nose and throat and trachea ... Thus, a relationship between insect tracheae and crustacean gills is plausible ... Strictly speaking, the cerebral trachea represents a primary branch of the first ... ...

Tobacco mosaic virus

... the following places at Britannica. Assorted References agent of infection ( in plant virus ) ... ways, the most important of which is through insect bites, primarily by aphids and plant hoppers. One of the most well-studied viruses, tobacco mosaic virus (TMV), is spread mechanically by ...

Spiracles

... ) ... spiracle ... spiracle n. Zoology. A respiratory aperture, especially: Any of several tracheal openings in the exoskeleton of an insect or a spider Giant Water Bug (Abedus herberti) Fascinating Facts ... The significance of spiracle conductance and spatial arrangement for ...

Spindle Fibers

... Spindle Fiber Origins. Welcome Teachers and ... But microtubular spindle fibers and a mitotic process comparable to that of ... Titin in insect spermatocyte spindle fibers associates with microtubules, actin, ... All of them were present in spindle fibers , where each co-localized with ...

Sociobiology

... Sociobiology : The New Synthesis by Edward O. Wilson, published by Harvard University Press ... Sociobiology , Abridged Edition. Biophilia. The insect Societies ... Socio-political overview of the circumstances leading to the development of Evolutionary Psychology as distinct from Sociobiology , ...

Segregating

...now... Segregating Children From Men. By Wendy McElroy ... Stop segregating children from men! ... Sunflower Germplasm Development for Improved insect and Disease Resistance (413360)The objectives of our proposed ... developed segregating populations ... WASHINGTON -- The Supreme Court today ...

Seed coat

... (or testa) develops from the tissue, the integument, originally ... seed coat n. The outer protective covering of a seed . ... Can you use insect dust to coat your potato seed to prevent seed rot? ... Encyclopedia article about seed coat . Information about seed coat in the ...

Repetitive DNA

... DNA in ... RepeatScout identified 31 highly repetitive DNA elements with repeat units ... Estimates of the repetitive DNA content in insect genomes vary widely. ... Britannica online encyclopedia article on repetitive DNA (biochemistry), One major difference between the genomes of ...

Poikilothermic

... the other vertebrates and the invertebrates — that secure ... Ectotherms are "cold-blooded" or poikilothermic . ... about.png! What is ILCYM? insect Life Cycle Modeling is a software that helps define phenological models of poikilothermic organism (insects) based on temperature ... ... ...

Plastid

...d... posted to protein plastid mitochondria import endosymbiosis chloroplasts by ... Plastid biotechnology: prospects for herbicide and insect resistance, metabolic ... Definition and other additional information on Plastid from Biology-Online.org dictionary. ... A plastid containing ...

Olfaction

... Our Chemical Senses: Olfaction . Experiment: Olfactory Fatigue. Developed by ... To view the Teacher Guide and Student Guide, you must have ... insect Olfaction ... Intended for elementary and secondary school students and teachers who are interested in learning about the nervous ... smell, ...

Micropyle

... ... Aspects of the topic micropyle are discussed in the following places at Britannica. Assorted References reproduction in insects ( in insect (arthropod class): Reproductive system; The eggshell, or chorion, commonly provided with an air-filled meshwork, provides for respiration of the ...

Microgametophyte

... of a plant with alternation of generations produced by a tiny Microgametophyte population sizes and plant reproductive output in the insect ... We quantified microgametophyte population sizes and inferred pollen limitation ... Microgametophyte : The pollen consists of more than ...

Metapopulation

... species which interact at some level. The term metapopulation was coined by Richard Levins in 1969 to describe a model of population dynamics of insect pests in agricultural fields, ... in ecology, a regional group of connected populations of a species. For a given species, each metapopulation ...

Exoskeleton

... that supplies at least part of the activation-energy for limb movement. exoskeleton n. A hard outer structure, such as the shell of an insect or crustacean, that provides protection or support for an organism Powered exoskeleton It has been suggested that Powered exoskeletons in ... ...

Entomology

... A&M University, College Station, Texas ... and Charles R. Parencia Chair in Cotton Entomology ... Freshwater and Estuarine Entomology . insect Pathology ... Entomology Professor Barbara Thorne to Head New Biological Sciences Graduate Program ... Entomology ... Entomology hosts ...

Drosophila

... more appropriately pomace flies, vinegar flies, or wine flies, a reference to the characteristic ... Drosophila melanogaster is a two-winged insect that belongs to the Diptera, the order of the flies. The species is commonly known as the common fruit fly or vinegar fly, and is one of the most ...

Directional cloning

... cloning of the insert is achieved with minimal nonrecombinant ... Directional PCR cloning into vectors for transient expression in insect cells ... rectional cloning of PCR products. without restriction enzyme diges ... cloning and high-level expression of peptide. ...

Cuticula

... Derived terms ... Information about cuticula in the free online English dictionary and encyclopedia. ... cuticula - the outer body wall of an insect ... Cuticula - Definition of Cuticula at Dictionary.com a free online dictionary ... cuticula - 2 dictionary results. cuticula ... Also ...

Bacillus thuringiensis

... for over 20 ... Bacillus thuringiensis use in agriculture: a molecular ... Cytolytic activity of Bacillus thuringiensis proteins to insect and mammalian cell lines. ... BACILLUS THURINGIENSIS . Please note that the layout and pagination of this web ... pest control agent ...

Avidin

... Information Staff, Agricultural Research Service, USDA. Communicating news and information ... Avidin restricts the availability of biotin, so the insect ... Information about avidin in the free online English dictionary and encyclopedia. ... An abundance of avidin in the diet can result in a ...
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